The damage from destroying your Presence is part of the same action because the Special Rule says "When you destroy your Presence..." – it modifies how other actions work while they're happening. Tags: Destroy, Saved From Destruction, Action Modifiers, Damage, 25 more...
Similarly, if a Power allows adding multiple token types in combinations you choose (e.g., Utter a Curse of Dread and Bone), Intensify can only add extras of token types that are already being added. And if you could add tokens in multiple places (e.g., Spill Bitterness into the Earth), you can only add extra tokens where you already added tokens of that type. Tags: Spirit tokens, Action Modifiers, Hazards Spread Across the Island, Utter a Curse of Dread and Bone, 5 more...
Use the Power as though the number in the "Range" box were increased or completely ignored (depending on the Range boost in question) and the extra target requirement were included in the "Target Land" box. In the case of Shadows of the Dahan, this means ignoring the Range number entirely (but not anything else in the "Range" box!) and adding "Dahan" to whatever else is already in the "Target Land" box.